Title :
On Selection of Optimum Signal Source Impedance for Inductively-Degenerated CMOS LNAS
Author :
Belostotski, Leonid ; Haslett, James W.
Author_Institution :
TRLabs., Calgary Univ., Alta.
Abstract :
Noise figure optimization techniques for an inductively-degenerated CMOS LNA with a lossy gate inductor are presented. The techniques allow for integration of the LNA directly with a non -50 Omega antenna thus removing the need for a lossy matching circuitry. The LNA noise temperature is shown to reduce by a factor of 1 when non-standard signal source resistance is used. The LNA analyzed in this paper is targeted for the Canadian large adaptive reflector (CLAR)
Keywords :
CMOS integrated circuits; inductors; low noise amplifiers; CLAR; Canadian large adaptive reflector; antenna; gate inductor; inductively-degenerated CMOS LNA; low noise amplifier; noise figure optimization technique; noise temperature; signal source resistance; CMOS technology; Circuit noise; Energy consumption; Impedance; Inductors; MOSFETs; Noise figure; Q factor; Signal design; Temperature; CMOS; Canadian Large Adaptive Reflector (CLAR); Square Kilometer Array (SKA); low noise amplifier (LNA); noise optimization;
Conference_Titel :
Electrical and Computer Engineering, 2006. CCECE '06. Canadian Conference on
Conference_Location :
Ottawa, Ont.
Print_ISBN :
1-4244-0038-4
Electronic_ISBN :
1-4244-0038-4
DOI :
10.1109/CCECE.2006.277668
